Home / 39,583.09-54,624.11-21,678.09

Finding the Fourth Proportional to 39,583.09, 54,624.11 and 21,678.09

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Solution

The fourth proportional to 39,583.09, 54,624.11 and 21,678.09 is: 29,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.09 : 54,624.11 = 21,678.09 : x
  2. Step 2: Convert to fraction form
    39,583.09/54,624.11 = 21,678.09/x
  3. Step 3: Cross multiply
    39,583.09x = 54,624.11 × 21,678.09
  4. Step 4: Simplify right side
    39,583.09x = 1,184,146,213.15
  5. Step 5: Solve for x
    x = 1,184,146,213.15/39,583.09
  6. Step 6: Final answer
    x = 29,915.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.